Why in News?
Uganda officially notified the World Health Organization (WHO) of a newly confirmed case of Marburg Virus Disease (MVD) in the country's western Kyegegwa District.
What is Marburg Virus Disease?
- The Pathogen: MVD is a severe, highly fatal disease caused by the Marburg virus, a member of the Filoviridae family.
- Ebola Kinship: It belongs to the exact same viral family as the Ebola virus and causes clinically similar symptoms.
- Extreme Fatality: It is exceptionally lethal, carrying a historic case fatality rate (CFR) ranging between 24% and 88% depending on the strain and infrastructure.
- Historical Origins: First identified in 1967 after simultaneous lab outbreaks in Marburg and Frankfurt (Germany) and Belgrade (Serbia) linked to African green monkeys imported from Uganda.
How It Spreads? (Transmission)
- Natural Reservoir: The Egyptian fruit bat (Rousettus aegyptiacus) acts as the natural host for the virus.
- Animal-to-Human Spillover: Humans contract the virus through prolonged exposure to bat-infested caves or mines, or contact with bat excretions.
- Human-to-Human Contact: Spreads quickly between people through direct contact of broken skin or mucous membranes with infected blood, secretions, organs, or other bodily fluids.
- Contaminated Objects: Can be transmitted by touching bedding, clothing, or medical surfaces soiled with an infected person's fluids.
- Risky Burial Practices: Direct handling of the deceased during traditional burial rituals is a major driver of community spread.
Key Symptoms and Progression
- Incubation Period: The time from infection to the onset of symptoms ranges from 2 to 21 days.
- Sudden Onset: The disease hits abruptly with a high fever, crushing headache, severe muscle aches, and profound fatigue.
- Gastrointestinal Phase: Severe watery diarrhea, intense abdominal pain, cramping, and severe nausea typically manifest by the third day.
- Hemorrhagic Phase: Between days 5 and 7, patients develop severe bleeding tendencies, including vomiting blood or bleeding from the nose, gums, and vagina.
- Fatal Collapse: In terminal cases, severe blood loss combined with multi-organ failure leads to shock and death, usually between 8 and 9 days after symptoms begin.
Treatment, Prevention, and Control
- No Approved Vaccine: There are no regulatory-approved vaccines commercially available to prevent MVD.
- No Specific Cure: No proven antiviral treatment exists yet to wipe out the infection.
- Supportive Care Saves Lives: Early supportive clinical care—such as intensive intravenous or oral rehydration, oxygen maintenance, and symptom management—significantly improves survival rates.
- Strict Isolation protocols: Healthcare workers must strictly use Personal Protective Equipment (PPE) and absolute isolation protocols to halt hospital-wide transmission.
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